I wanted to keep my theater interface as family friendly as possible. So everything is done with as little clicks as possible. All the hard work of selecting the proper sources is done behind the scenes with CQC. From the Home Page you can select HDTV which simply selects the HDTV source from the A/V Matrix. Also, you have the option of selecting DVD to browse DVDs which have been added to the CQC Media Repository. These are physical DVDs that live in a Sony 777 400 disc changer. Currently all the other buttons are just place holders and don't actually do anything; BUT THEY WILL!